Difference between revisions of "Single neutron angular distribution"

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{| cellpadding="2" style="border: 1px solid darkgray;"
 
{| cellpadding="2" style="border: 1px solid darkgray;"
 
! width="400" | Experiment
 
! width="400" | Experiment
 +
! width="400" | Simulation
 
! width="400" | Simulation
 
! width="400" | Simulation
 
|- border="0"
 
|- border="0"
 
| [[File:single_n_angle_E.png|400px|Region 1]]
 
| [[File:single_n_angle_E.png|400px|Region 1]]
 
| [[File:Simsingle_n_angle_E.png|500px|Region 2]]
 
| [[File:Simsingle_n_angle_E.png|500px|Region 2]]
 +
| [[File:Simsingle_n_angle_Ewores.png|500px|Region 3]]
 
|- align="center"
 
|- align="center"
| Experiment|| Simulation w/ y-resolution; Solid angle = 0.093 sr
+
| Experiment|| Simulation w/ y-resolution; Solid angle = 0.093 sr||Simulation w/o y-resolution; Solid angle = sr
 
|}
 
|}
  

Revision as of 16:19, 11 January 2013

The data on the single neutron angular distribution were extracted from the experimental data. All production runs with DU target were processed.

It was observed the angle between single neutron trajectory hitting the detector surface in different x-coordinates and incident photon direction for each of the plastic paddle detectors. This geometry is presented below:

Detector layout wrt photon.png

Below each detector there is calculated (using the geometry) value of the angle between the photon beam and the neutron central trajectory hitting the detector.

The single neutron angular distribution for each detector extracted from the experimental data and simulation is presented below.

Detector E:

Experiment Simulation Simulation
Region 1 Region 2 Region 3
Experiment Simulation w/ y-resolution; Solid angle = 0.093 sr Simulation w/o y-resolution; Solid angle = sr


Detector M:

Experiment Simulation
Region 1 Region 2
Experiment Simulation w/ y-resolution; Solid angle = 0.104 sr


Detector F:

Experiment Simulation
Region 1 Region 2
Experiment Simulation w/ y-resolution; Solid angle = 0.085 sr


Detector G:

Experiment Simulation
Region 1 Region 2
Experiment Simulation w/ y-resolution; Solid angle = sr


Detector H:

Experiment Simulation
Region 1 Region 2
Experiment Simulation w/ y-resolution; Solid angle = 0.023 sr



Detector K:

Experiment Simulation
Region 1 Region 2
Experiment Simulation w/ y-resolution; Solid angle = 0.018 sr


Detector I:

Experiment Simulation
Region 1 Region 2
Experiment Simulation w/ y-resolution; Solid angle = 0.011 sr


As can be seen there is no overlap in the single neutron angular distributions for the neutron detectors.